射孔井段

射孔井段确定；

Determination of the perforation interval of wells ;

通过双河油田欠注井层原因剖析，射孔井段套管内壁堵塞是其主要原因之一。

Plugging on string inner wall in perforation interval is one of the main causes leading to insufficient water injection in Shuanghe oilfield .

在延长油田应用结果表明，燃气动力补贴管的锚定力高于800kN，耐压值可达25MPa，成功地修复了套损井、封堵了射孔井段，取得了较好的效果。

The field application in Yanchang Oilfield shows that the anchorage force of gas power patched casing is more than 800 kN and its pressure endurance is as high as 25 MPa . The casing failure wells are repaired and the perforation intervals are sealed successfully .

带隔板底水油藏油井射孔井段的确定方法

Determination of Perforation Intervals of Wells in Bottom-Water Reservoirs with Barriers

提供准确的射孔井段并提出了相应的试油建议。

It provided exact well section of perforation and put forward the accordance oil-testing advices .

水平井射孔井段的井眼附近若有泥质夹层，无疑对水平井提高采收率是很不利的。

If there is a shale sandwich near wellbore in horizontal well logging , it is harmful to promote production rate .

衬管补贴工艺技术能实现对射孔井段、套损部位的有效补贴，延长油（水）井开发生产的周期。

The technology of liner subsidy is effectively done to perforated parts and destroyed casing which can prolong the period of the water and oil wells for production .

分析了影响蒸汽吞吐开发效果的主要因素是渗透率、地层系数、油层在射孔井段位置。

Through analysis , this paper points out that permeability , formation capacity , position of oil bearing layer with perforation interval are the main factors affecting development result of huff and puff .

经在内蒙古巴地4井测试（油层套管177.8min×255.09m；射孔井段146.0～158.0m），证明其可行性。

An actual test in Badi 4 well of Inner Mongolia ( production casing : 177 . 8mm × 255 . 09m , perforations : 146 . 0 ~ 158 . 0m ) proves applicability of the system .

活跃边底水稠油油藏高轮次吞吐以后，由于受储层非均质性、开采方式、油藏边底水、射孔井段等因素影响，剩余油分布规律复杂，蒸汽吞吐开采效果变差。

After the high order turnover of active bottom thicked oil , the distribution regularity of residual oil became complicated and the exploitation effect became worse due to influence of reservior inhomogeneity , exploitation method and bottom water .

爆燃压裂和酸化侵蚀作用相结合能够排除射孔井段在钻井、固井时因泥浆、细菌及其他杂质侵入而造成的堵塞，提高注水量。

The combination of the deflagration-fracturing effect and the acidification-eroding effect can eliminate channel jam caused by invaded mud , bacteria and other impurities in the perforated intervals during the well drilling and completing process so as to increase water injection rate .

随着开发加密调整，开发层系的增加套损井在整个开发区内都有分布，而且套损层位增加，套损点有射孔顶界逐渐向射孔井段内延伸。

With the development of infill adjustment , the increase casing damage wells of developed-layer distribute in the entire zone , and also casing damage horizons increase , casing damage points extend from the perforated top sector to the perforation of the wells gradually .